Proposal for a 1 MeV, 0. 1 A, d. c. D[sup [minus]] beam acceleration experiment at Cadarache

Conference · Mon Oct 05 00:00:00 EDT 1992 · AIP Conference Proceedings (American Institute of Physics); (United States)

OSTI ID:6693046

Fumelli, M; Jequier, F; Pamela, J; Simonin, A ^[1]

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1. Association EURATOM-CEA, CE Cadarache, 13108 St. Paul-Lez-Durance (France)

It is proposed to conduct on the Cadarache neutral beam test bed an experiment with the following characteristics: 1 MeV, 0.1 A, D[sup [minus]], long pulses (several seconds). This experiment will deal with several ITER neutral beam relevant subjects, which are critical and still not (or poorly) explored: (i) development of scalable high-energy (up to 1 MeV) D[sup [minus]] accelerator concepts, with current densities in the 10 mA/cm[sup 2] range, adequate optical quality and suppression of stray particles (electrons, etc.); a simplified concept of accelerator, SINGAP, will be compared to a multi-hole multi-gap accelerator; (ii) study of breakdowns in the presence of the beam with a vacuum insulated beamline and effects of a large stored electrostatic energy released during breakdowns (100 Joules range); (iii) development of critical HV devices (large insulator for bushing; decoupling devices for the external stray capacitances; fast protection systems in case of breakdowns). If this proposal is accepted by the European Community beginning of 1993, the experiments could start by mid-1994.

• OSTI ID: 6693046
• Report Number(s): CONF-921145-; CODEN: APCPCS
• Journal Information: AIP Conference Proceedings (American Institute of Physics); (United States), Vol. 287:1; Conference: Production and neutralization of negative ions and beams, Upton, NY (United States), 9-13 Nov 1992; ISSN 0094-243X
• Country of Publication: United States
• Language: English

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